springer springer aug 1998 (377 risultati)

Buch. Condizione: Neu. Neuware - Starting with an elegant description of a small piece of land called Hungry Hollow, A.K. Dewdney introduces us to its denizens. The reader goes on a guided tour through the many dimensions of our natural habitat, back into prehistoric time and inward to a teeming microscopic world full of strange creatures performing bizarre feats.'It surprised me how 220 pages explaining biological phenomena can add up to a literary image of the magic of lifePerhaps this book will go some way to redress the general deficiency in judgement that allows humans to endanger other life forms.' -NEW SCIENTIST.

Buch. Condizione: Neu. Neuware - Development and Organization of the Retina offers an invaluable survey of contemporary research issues and methods dealing with the retina and retinal projections.The book's 19 chapters report on investigations into two areas: research into the organization of the mature retina and work on developmental issues. A sampling of chapter topics includes -- embryonic patterning of cone subtypes in the mammalian retina -- synaptic transmission between retinal neurons -- scaling the retina, macro and micro -- retinal ganglion cell axonal transport, and more.

Buch. Condizione: Neu. Neuware - This book focuses on those virus families that are found primarily or exclusively in insects, covering all major families of insect-selective viruses except for the baculoviruses which were described in a previous volume of The Viruses series. Topics include: the large DNA viruses; the small DNA densoviruses; the RNA viruses; and the arbovirus expression systems and their potential employment in the future. Ninety-eight illustrations supplement the text.

Buch. Condizione: Neu. Neuware - Subcellular: Response-Field Dynamics in the Auditory Pathway; D.A. Depireux, et al. Rapid Categorization of Extrafoveal Natural Images: Implications for Biological Models;M. Fabre-Thorpe, et al. Cortical Activity Pattern in Complex Tasks; F. Frisone, et al. Cellular: Resolving the Paradoxical Effect of Activity on Synapse Elimination; M.J. Barber, J.W. Lichtman. Cellular Mechanisms of Calcium Elevation Involved in Long Term Memory; K.T. Blackwell, et al. Temporal Characteristics of V1 Cells Arising from Synaptic Depression; F.S. Chance, et al. Network: An Oscillating Cortical Network Model of Sensory-Motor Timing and Coordination; B. Baird. Pattern-Generator-Driven Development in Self-Organizing Models; J.A. Bednar, R. Miikkulainen. Systems: Finite Element Decomposition of Human Neocortex; D.A. Batte, et al. Path Integration in the Rat Head-Direction Circuit; H.T. Blair, et al. Methodology: The Paperless Laboratory: An Integrated Environment for Data Acquisition, Analysis, Archiving, and Collaboration; T.D. Coates, Jr. The Qualitative Reasoning Neuron: A New Approach to Modeling in Computational Neuroscience; J.L. Krichmar, et al. 93 Additional Articles. Index.

Buch. Condizione: Neu. Neuware - This book discusses a famous problem that helped to define the field now known as topology: What is the minimum number of colors required to print a map so that no two adjoining countries have the same color This problem remained unsolved until the 1950s, when it was finally cracked using a computer. This book discusses the history and mathematics of the problem, as well as the philosophical debate which ensued, regarding the validity of computer generated proofs.

Buch. Condizione: Neu. Neuware - Perspectives in Spread Spectrum brings together studies and recent work on six exciting topics from the spread spectrum arts. The book gives a wide, collective view of trends, ideas, and techniques in the spread spectrum discipline, due to the authors' extensive work on spread spectrum techniques and applications from different vantage points. The inexorable march of electronics towards ever faster, ever smaller, and ever more powerful electronic and optical circuitry has wrought, and will continue to enable, profound changes in the spread spectrum arts, by allowing increasingly complex signalling waveforms and statistical tests to be implemented as the theory beyond spread spectrum continues to evolve. Perspectives in Spread Spectrum is divided into six chapters. The first chapter deals with sequence spreading design. There is not a single metric for design of spreading sequences; rather, the design is ideally tailored to the specific scenario of usage. This chapter delves into recent and very promising synthesis work. The second chapter deals with OFDM techniques. As channels become wider and trans-channel fading (or jamming) becomes frequency selective across the band, OFDM techniques may provide a powerful alternative design perspective. The third chapter is a generalization of the venerable Walsh functions. A new modulation scheme, Geometric Harmonic Modulation, GHM for short, is reviewed and characterized as a form of OFDM. From GHM, a further generalization of the Walsh functions is derived for non-binary signalling. The fourth chapter is concerned with some new and exciting results regarding the follower jammer paradigm. A counter-countermeasure technique is reviewed, notable for its counterintuitive characteristic which can be understood from a simple yet elegant game framework. The fifth chapter recounts some results pertaining to random coding for an optical spread spectrum link. The technique is basedon laser speckle statistics and uses a coherent array of spatial light modulators at the transmitter but allows the receiver to be realized as a spatially distributed radiometric and therefore incoherent structure. The sixth and final chapter looks at an important and interesting application of spread spectrum to accurately locate a wideband, bent pipe , satellite transponder. It is, in a strong sense, an inverted GPS technique. Perspectives in Spread Spectrum serves as an excellent reference and source of ideas for further research, and may be used as a text for advanced courses on the topic.

Buch. Condizione: Neu. Neuware - Ecosystem research has emerged in recent decades as a vital, successful, and sometimes controversial approach to environmental science. This book emphasizes the idea that much of the progress in ecosystem research has been driven by the emergence of new environmental problems that could not be addressed by existing approaches. By focusing on successes and limitations of ecosystems studies, the book explores avenues for future ecosystem-level research.

Buch. Condizione: Neu. Neuware - Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical responseof materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Buch. Condizione: Neu. Neuware - . libraries should be encouraged to buy this book, as some of the information in it will be of value to investigators employing a variety of different types of fluorescence microscopy and fluorescent probes.' Microscopy and Microanalysis, 5: 147 (1999).

Buch. Condizione: Neu. Neuware - Studies of convection in geophysical flows constitute an advanced and rapidly developing area of research that is relevant to problems of the natural environment. During the last decade, significant progress has been achieved in the field as a result of both experimental studies and numerical modelling. This led to the principal revision of the widely held view on buoyancy-driven turbulent flows comprising an organised mean component with superimposed chaotic turbulence. An intermediate type of motion, represented by coherent structures, has been found to play a key role in geophysical boundary layers and in larger scale atmospheric and hydrospheric circulations driven by buoyant forcing. New aspects of the interaction between convective motions and rotation have recently been discovered and investigated. Extensive experimental data have also been collected on the role of convection in cloud dynamics and microphysics. New theoretical concepts and approaches have been outlined regarding scaling and parameterization of physical processes in buoyancy-driven geophysical flows. The book summarizes interdisciplinary studies of buoyancy effects in different media (atmosphere and hydrosphere) over a wide range of scales (small scale phenomena in unstably stratified and convectively mixed layers to deep convection in the atmosphere and ocean), by different research methods (field measurements, laboratory simulations, numerical modelling), and within a variety of application areas (dispersion of pollutants, weather forecasting, hazardous phenomena associated with buoyant forcing).

Taschenbuch. Condizione: Neu. Neuware - This book offers a set of case studies exemplifying the broad range of statis tical science used in environmental studies and application. The case studies can be used for graduate courses in environmental statistics, as a resource for courses in statistics using genuine examples to illustrate statistical methodol ogy and theory, and for courses in environmental science. Not only are these studies valuable for teaching about an essential cross-disciplinary activity but they can also be used to spur new research along directions exposed in these examples. The studies reported here resulted from a program of research carried on by the National Institute of Statistical Sciences (NISS) during the years 1992- 1996. NISS was created in 1991 as an initiative of the national statistics or ganizations, with the mission to renew and focus efforts of statistical science on important cross-disciplinary problems. One of NISS' first projects was a cooperative research effort with the U.S. Environmental Protection Agency (EPA) on problems of great interest to environmental science and regulation, surely one of today's most important cross-disciplinary activities. With the support and encouragement of Gary Foley, Director of the (then) U.S. EPA Atmospheric Research and Exposure Assessment Laboratory, a project and a research team were assembled by NISS that pursued a program which produced a set of results and products from which this book was drawn.

Buch. Condizione: Neu. Neuware - Testing of Communicating Systems presents the latest world-wide results in both theory and practice. This volume provides a forum in which the substantial volume of research on the testing of communicating systems, spanning from conformance testing through interoperability testing, to performance and QoS testing, is brought together. The following topics are discussed in detail: Types of testing; Phases of the testing process; Classes of systems to be tested; and Theory and practice of testing. This book contains the selected proceedings of the 11th International Workshop on the Testing of Communicating Systems, formerly the International Workshop on Protocol Test Systems, sponsored by the International Federation for Information Processing (IFIP), and held in Tomsk, Russia, in August/September 1998. Testing of Communicating Systems will be essential reading for engineers, IT managers and research personnel working in computer sciences and telecommunications.

Buch. Condizione: Neu. Neuware - On 13 and 14 September 1997, municipal elections took place in Bosnia and Herzegovina. This book extensively covers the findings of the 363 international observers on both polling days. Were the elections `free and fair' What did the observers record about the circumstances, procedures and security measurements at the polling stations Which parties observed the elections, and why How did the election process and the vote count compare to the 1996 elections This book provides a regional profile and outlines specific problems in the various types of polling stations. The observation methodology and design of the observation reports are discussed. Finally, recommendations are made for the upcoming 1998 election observations, and future missions. The book should be of interest to students, scholars and others working in the fields of observation and analysis of elections, ethnic conflicts in the Balkans, and the role of international organisations in democratisation and peace processes.

Buch. Condizione: Neu. Neuware - Nutrients have been recognized as essential for maximum growth, successful reproduction, and infection prevention since the 1940s; since that time, the lion's share of nutrient research has focused on defining their role in these processes. Around 1990, however, a major shift began in the way that researchers viewed some nutrients particularly the vitamins. This shift was motivated by the discovery that modest declines in vitamin nutritional status are associated with an increased risk of ill-health and disease (such as neural tube defects, heart disease, and cancer), especially in those populations or individuals who are genetically predisposed. In an effort to expand upon this new understanding of nutrient action, nutritionists are increasingly turning their focus to the mathematical modeling of nutrient kinetic data. The availability of suitably-tagged (isotope) nutrients (such as B-carotene, vitamin A, folate, among others), sensitive analytical methods to trace them in humans (mass spectrometry and accelerator mass spectrometry), and powerful software (capable of solving and manipulating differential equations efficiently and accurately), has allowed researchers to construct mathematical models aimed at characterizing the dynamic and kinetic behavior of key nutrients in vivo in humans at an unparalleled level of detail.

Buch. Condizione: Neu. Neuware - FRANCIS W. HOLM 30 Agua Sarca Road, Placitas, New Mexico 1. Overview The North Atlantic Treaty Organization (NATO) sponsored an Advanced Research in Prague, Czech Republic, on October 13-15, 1997, to collect and Workshop (ARW) study information on effluents from alternative demilitarization technologies and to report on these fmdings. The effluents, orprocess residues, identified for assessment at the workshop are generated by systems that have been proposed as alternatives to incineration technology for destruction of munitions, chemical warfare agent, and associated materials and debris. The alternative technologies analyzed are grouped into three categories based on process bulk operating temperature: low (0-200 C), medium (200-600 C), and high (600-3,500 C). Reaction types considered include hydrolysis, biodegradation, electrochemical oxidation, gas-phase high-temperature reduction, steam reforming, gasification, sulfur reactions, solvated electron chemistry, sodium reactions, supercritical water oxidation, wet air oxidation, and plasma torch technology. These ofprocesses, some of which have been studied categories represent a broad spectrum only in the laboratory and some of which are in commercial use for destruction of hazardous and toxic wastes. Some technologies have been developed and used for specific commercial applications; however, in all cases, research, development, test, and evaluation (RDT&E) is necessary to assure that each technology application is effective for destroying chemical warfare materiel. Table 1 contains a list of more than 40 technologies from a recent report for the U.S. Army [1]. Many ofthe technologies in Table 1 are based on similar principles.

Buch. Condizione: Neu. Neuware - also in: THE KLUWER INTERNATIONAL SERIES ON ASIAN STUDIES IN COMPUTER AND INFORMATION SCIENCE, Volume 2.

Buch. Condizione: Neu. Neuware - Adaptive Resonance Theory Microchips describes circuit strategies resulting in efficient and functional adaptive resonance theory (ART) hardware systems. While ART algorithms have been developed in software by their creators, this is the first book that addresses efficient VLSI design of ART systems. All systems described in the book have been designed and fabricated (or are nearing completion) as VLSI microchips in anticipation of the impending proliferation of ART applications to autonomous intelligent systems. To accommodate these systems, the book not only provides circuit design techniques, but also validates them through experimental measurements. The book also includes a chapter tutorially describing four ART architectures (ART1, ARTMAP, Fuzzy-ART and Fuzzy-ARTMAP) while providing easily understandable MATLAB code examples to implement these four algorithms in software. In addition, an entire chapter is devoted to other potential applications for real-time data clustering and category learning.

Buch. Condizione: Neu. Neuware - Antibodies are crucial to the fine specificity of the immune system. An effective functioning of these molecules requires interaction with immune cells. Receptors for antibodies, Fc receptors, provide this critical link between the humoral and cellular branches of the immune system. This book presents a comprehensive overview of the different Fc receptors currently recognized. The first part of the book contains state-of-the-art overviews on the biological role of FcR. The latest information on FcR heterogeneity, FcR physiology, FcR-ligand recognition, their crucial coordinating role in immunity, interactions with other immunoreceptors, and the role of FcR in immunoglobulin transport and catabolism are discussed. The clinical importance of FcR is developed in the second part of the book. The well-recognized roles of FcR in allergy, inflammation, infectious diseases, autoimmune disorders, and immunotherapeutic importance are reviewed. The information in this book is easily accessible and should be helpful for researchers and clinical specialists as a convenient overview of the field, as well as a comprehensive introduction for students starting in this area of research.

Buch. Condizione: Neu. Neuware - Cardiovascular disease affects 20% of all Americans and is the leading cause of death in the USA. Every year approximately 1,500.000 Americans suffer from an acute myocardial infarction, and over 25% of the total number of deaths in this country are attributable to coronary artery disease. Unstable angina causes over 650,000 hospital admissions, and in the absence of medical therapy, the rate of progression from unstable angina to infarction is 12-20%. Since plaque disruption, plaque erosion, and acute intracoronary thrombus formation play major roles in the pathophysiology of both unstable angina and acute myocardial infarction, and since the two disease entities represent a continuum of coronary ischemic syndromes, it is appropriate to discuss the two disease states in a single monograph. Unstable Coronary Artery Syndromes, Pathophysiology, Diagnosis and Treatment will offer the clinician a reference book which coherently discusses the pathophysiology of acute ischemic syndromes as well as remarks diagnosis and treatment strategies. Geared toward internists and cardiologists, the book should allow the reader to understand the pathophysiology of unstable coronary artery syndromes and subsequently apply this knowledge to patient care.

Buch. Condizione: Neu. Neuware - There is broad interest in feature extraction, construction, and selection among practitioners from statistics, pattern recognition, and data mining to machine learning. Data preprocessing is an essential step in the knowledge discovery process for real-world applications. This book compiles contributions from many leading and active researchers in this growing field and paints a picture of the state-of-art techniques that can boost the capabilities of many existing data mining tools. The objective of this collection is to increase the awareness of the data mining community about the research of feature extraction, construction and selection, which are currently conducted mainly in isolation. This book is part of our endeavor to produce a contemporary overview of modern solutions, to create synergy among these seemingly different branches, and to pave the way for developing meta-systems and novel approaches. Even with today's advanced computer technologies, discovering knowledge from data can still be fiendishly hard due to the characteristics of the computer generated data. Feature extraction, construction and selection are a set of techniques that transform and simplify data so as to make data mining tasks easier. Feature construction and selection can be viewed as two sides of the representation problem.

Buch. Condizione: Neu. Neuware - This book presents a unified optimal control approach to a large class of problems arising in the field of production planning and scheduling. It introduces a leading optimal flow control paradigm which results in efficient solutions for planning and scheduling problems. This book also introduces the reader to analytical and numerical methods of the maximum principle, used here as a mathematical instrument in modeling and solving production planning and scheduling problems. The book examines control of production flows rather than sequencing of distinct jobs. Methodologically, this paradigm allows us to progress from initial assumptions about a manufacturing environment, through mathematical models and construction of numerical methods, up to practical applications which prove the relevance of the theory developed here to the real world. Given a manufacturing system, the goal is to control the production, subject to given constraints, in such a way that the demands are tracked as closely as possible. The book considers a wide variety of problems encountered in actual production planning and scheduling. Among the problems are production flow sequencing and timing, capacity expansion and deterioration, subcontracting and overtime. The last chapter is entirely devoted to applications of the theory to scheduling production flows in real-life manufacturing systems. The enclosed disk provides software implementations of the developed methods with easy, convenient user interface. We aimed this book at a student audience - final year undergraduates as weIl as master and Ph. D.

Buch. Condizione: Neu. Neuware - In 1969 the North Atlantic Treaty Organization (NATO) cstablishcd thc Committee on Challenges of Modern Society (CCMS). The subject of air pollution was from the thc very beginning one of the priority problems umier deliberation within the tJ-amcwork of various pi lot studies undertaken by this committee. The organization of a yearly conference dealing with air pollution modelling and its application has become one of the main activities within thc pilot study rclating to air pollution. Pleasc see the listing on the next page for completed NATO/CCMS Pilot Studies and the International Technical Meetings (ITM) on Air Pollution Modelling and Its Application. This volume contains the papers at the 22ND lTM, being held in Clermont-Ferrand, France during June 2 -6,1997. It was attended by 152 participants representing 33 countries. This lTM wasjointly organized by the Ris0 National Laboratory of Denmark (pilot country): the Laboratoire Associe de Meteorologic Physique, associated with the Centre National de la Recherche Scientifique, the Universite Blaise Pascal. and the Observatoire de Physique du Globe de Clermont-Ferrand, France (host country). We wish to express our gratitude to the sponsors that made this conference possible. In addition to tinancial support from NATO/CCMS, the conference received contributions from Centre National de Recherche Scientitique, Observatoire de Physique du Globe de Clermont-Ferrand, Universite Blaise Pascal, Electricite de France, lnstitut Francais du Pe trole, Conscil Regional d'Auvergne, Conseil General du Puy de DC1I11e, Mairie de Clermont Ferrand, SATCAR Semaine des arts techniques et culture de l'automobile et de la route.

Buch. Condizione: Neu. Neuware - This volume contains 19 articles written by speakers at the Advanced Study Institute on 'Modular representations and subgroup structure of al gebraic groups and related finite groups' held at the Isaac Newton Institute, Cambridge from 23rd June to 4th July 1997. We acknowledge with gratitude the financial support given by the NATO Science Committee to enable this ASI to take place. Generous financial support was also provided by the European Union. We are also pleased to acknowledge funds given by EPSRC to the Newton Institute which were used to support the meeting. It is a pleasure to thank the Director of the Isaac Newton Institute, Professor Keith Moffatt, and the staff of the Institute for their dedicated work which did so much to further the success of the meeting. The editors wish to thank Dr. Ross Lawther and Dr. Nick Inglis most warmly for their help in the production of this volume. Dr. Lawther in particular made an invaluable contribution in preparing the volume for submission to the publishers. Finally we wish to thank the distinguished speakers at the ASI who agreed to write articles for this volume based on their lectures at the meet ing. We hope that the volume will stimulate further significant advances in the theory of algebraic groups.

Buch. Condizione: Neu. Neuware - Policy and outcome studies represent a new area of research in oncology. Understanding the factors that affect quality of life, costs of care, patterns of care, and outcomes in oncology is important to providing comprehensive care. Health services is meant to be both a productive area of research as well as a discipline that improves patient decision making. In sum, Cancer Policy highlights some of the important areas of health services research in oncology.

Buch. Condizione: Neu. Neuware - A function is convex if its epigraph is convex. This geometrical structure has very strong implications in terms of continuity and differentiability. Separation theorems lead to optimality conditions and duality for convex problems. A function is quasiconvex if its lower level sets are convex. Here again, the geo metrical structure of the level sets implies some continuity and differentiability properties for quasiconvex functions. Optimality conditions and duality can be derived for optimization problems involving such functions as well. Over a period of about fifty years, quasiconvex and other generalized convex functions have been considered in a variety of fields including economies, man agement science, engineering, probability and applied sciences in accordance with the need of particular applications. During the last twenty-five years, an increase of research activities in this field has been witnessed. More recently generalized monotonicity of maps has been studied. It relates to generalized convexity off unctions as monotonicity relates to convexity. Generalized monotonicity plays a role in variational inequality problems, complementarity problems and more generally, in equilibrium prob lems.

Buch. Condizione: Neu. Neuware - Today the Scottish electronics industry employs 40,000 people directly and a further 30,000 in the supply infrastructure. There are now more than 550 electronic manufacturing and supplier companies in ' Silicon Glen'. In terms of the contribution to the economy, electronics is by far the most valuable industry. Its value in 1996 was approximately £ 10billion and accounted for more than half of Scotland's exports. The major product groupings within the industry include: - PCs, laptops and workstations - Disk drives, cable harnessing - Printers, keyboards and peripherals - Semiconductor devices and PCBs - TV, VCRs, CDs, stereos and other consumer electronics - Cellular phones and telecommunications products - A TMs and funds transfer systems - Networking and security systems - Navigation and sonar systems - Microwave products - Power supplies - Software and compilers Many of these companies are multi-national OEMs, who came to Scotland as inward investing companies. Early inward investing companies were from USA, followed by companies from Japan, and more recently from Taiwan and Korea. An important segment of the industry is involved in the manufacture of computers, including IBM, Compaq, Digital and Sun. In fact approximately 40% of the PCs sold in Europe are built in Scotland. With five of the world's top eight computer manufacturers locating a manufacturing base in Scotland there has been an attraction for foreign companies keen to provide service for these multinationals. In 1995/96 the supply base output was worth £1.

Buch. Condizione: Neu. Neuware.

Buch. Condizione: Neu. Neuware - Infection is a major cause of morbidity and mortality in patients with neoplastic disease because of compromised host defenses. These defects result in an increased risk of infection and its complications. The nature of the underlying malignancy, the immunodeficiencies associated with it, and the treatments directed against it are all important determinants of infection. In recent years, the introduction of more intensive chemotherapeutic regimes and the widespread use of bone marrow and peripheral stem cell transplantation have changed the pattern of infection in many patients. Furthermore, the increasing use of central venous access devices and antimicrobial prophylaxis has changed the epidemiology of infection in these patients as well. The goal of this volume in the Cancer Treatment and Research series is to emphasize that while the management of infection in cancer patients is common, it is constantly changing. With the increasing complexity of these patients, optimal management requires a multidisciplinary approach. Ultimately, it is hoped that this book will assist clinicians in the diagnosis, management, and prevention of infection in order to optimize care for patients with cancer.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -In this study extending classical Markov chain theory to handle fluctuating transition matrices, the author develops a theory of Markov set-chains and provides numerous examples showing how that theory can be applied. Chapters are concluded with a discussion of related research. Readers who can benefit from this monograph are those interested in, or involved with, systems whose data is imprecise or that fluctuate with time. A background equivalent to a course in linear algebra and one in probability theory should be sufficient. 140 pp. Englisch.

Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -It is well known that stellar winds are variable. Recent investigations show that the observed fluctuations are often cyclical in nature. This property seems to be shared by the winds of cool and hot stars, even though the physical mechanisms driving these winds are fundamentally different. The time was ripe for astrophysicists studying different types of stars, but applying very similar models, to present the state of the art in a concise form. The proceedings will provide a useful, up-to-date overview of the observations, interpretation, and modelling of the time-dependent mass outflows from a wide variety of stars, including young, pre-main-sequence objects, solar-type stars, red supergiants, and hot, massive stars. 444 pp. Englisch.